She beat Rachel Brooks 2-0 in the first round, and Julie Gore by the same scoreline in the quarter finals before losing 2-0 to Deta Hedman in the semi finals.
Harbour then played in the PDC in UK Open regionals and a last 16 place in the Welsh Regional Final helped him qualify for the 2004 UK Open, beating the only lady on the field Deta Hedman in the first round and then defeated Wayne Atwood and Adrian Lewis to reach the last 32 stage where he lost to Wayne Mardle.
She met world number one Deta Hedman in the final 3-2 after being 2-0 behind and seeing Deta throw for the title in a match which was shown live on BBC Two in front of 2 million viewers.
In 2011, she again reached the World Championship final after victories over Gore in the quarter-finals and Deta Hedman in the semi-finals.
His sister Deta Hedman is a professional darts player with several titles to her name.